$\frac{m^2n^0z}{m^{-3}n^{-2}}$

$\frac{28a^2b^3c}{7a^2b}$

$\int\left(1+6x\right)^3dx$

$x\:+\:3\:=\:-x\:-\:5$

$\frac{dy}{dx}\left(x^2+2y^2-4=0\right)$

$\frac{4x^3-36x^2+108x-108}{x-2}$

$\lim_{x\to\frac{\pi}{2}}\left(\left(\cos\left(x\right)\right)-\cos\left(\tan\left(6x\right)\right)\right)$